Monotherapy With Rapamycin in Long-standing Type 1 Diabetes (MONORAPA)
Diabetes Mellitus, Type 1
About this trial
This is an interventional treatment trial for Diabetes Mellitus, Type 1
Eligibility Criteria
Inclusion Criteria:
- Male or female aged >18 years, inclusive
- Clinical history compatible with T1D with onset of disease at < 40 years of age, insulin dependence for ≥ 5 years at the time of enrolment
- C-peptide concentrations under the threshold of preserved beta cell function: fasting C peptide <0.23 ng/ml
- Detectable fasting proinsulin concentrations (>0.5 pmol/l)
- Ability to provide written informed consent
- Mentally stable and able to comply with the protocol procedures for the duration of the study, including scheduled follow-up visits and examinations
Exclusion Criteria:
- Body mass index (BMI) >30 kg/m2 or patient with body weight ≤40kg;
- Insulin requirement >1.0 IU/kg/day or <10 U/day;
- HbA1c >11% (normal value: 3.5-6.0%) at the time of enrolment
- estimated glomerular filtration rate <60 mL/min/1.73m2 calculated using the subject's measured serum creatinine and the Modification of Diet in Renal Disease [MDRD] study estimation formula)
- Presence or history of macroalbuminuria (>300mg/g creatinine)
- For female subjects: positive pregnancy test, presently breast-feeding, or unwillingness to use effective contraceptive measures for the duration of the study and 4 months after discontinuation of treatment
- Active infection including hepatitis B, hepatitis C, HIV, or tuberculosis (TB) as determined by a positive skin test or clinical presentation, or under treatment for suspected TB
- Any history of malignancy except for completely resected squamous or basal cell carcinoma of the skin
- Lymphopenia (<1,000/μL), neutropenia (<1,500/μL), or thrombocytopenia (platelets <100,000/μL).
- Severe unremitting diarrhea, vomiting or other gastrointestinal disorders potentially interfering with the ability to absorb oral medications
- Any medical condition that will interfere with safe participation in the trial;
- Any immunosuppressive treatment at the time of enrollment.
- Allergy to active ingredients or to any of excipients
Sites / Locations
- IRCCS San Raffaele Scientific Institute
Arms of the Study
Arm 1
Arm 2
Arm 3
Placebo Comparator
Experimental
Experimental
Group 1: Placebo
Group 2: Rapamycin plus Placebo
Group 3: Rapamycin plus Vildagliptin
Eligible participants will be randomized to one of three treatment arms. In this arm patients will received placebo x 2 placebo (Group 1) After 4 weeks of treatment, patients will discontinue relevant placebo treatment, but continue the second placebo for a further 8 weeks
Eligible participants will be randomized to one of three treatment arms. In this arm patients will received rapamycin plus placebo. After 4 weeks of treatment, patients will discontinue rapamycin, but continue the second placebo for a further 8 weeks
Eligible participants will be randomized to one of three treatment arms. In this arm patients will received rapamycin plus vildagliptin. After 4 weeks of treatment, patients will discontinue rapamycin , but continue Vildagliptin o for a further 8 weeks